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N-1,N-1,N-4,N-4-Tetrakis(dibenzylphosphino)benzene-1,4-diamine: Synthesis, structural studies and transition metal chemistry

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Title N-1,N-1,N-4,N-4-Tetrakis(dibenzylphosphino)benzene-1,4-diamine: Synthesis, structural studies and transition metal chemistry
 
Creator NAIK, S
MAGUE, JT
BALAKRISHNA, MS
 
Subject Aminobis(diphosphine)
Molybdenum(O)
Palladium(II)
Copper(I)
Chelation
Bridging coordination
X-RAY-STRUCTURE
CRYSTAL-STRUCTURES
BIS(2-(DIPHENYLPHOSPHINO)PHENYL) ETHER
HYDROGENATION REACTIONS
COPPER(I) COMPLEXES
II COMPLEXES
LIGANDS
RUTHENIUM(II)
DIPHOSPHINE
REACTIVITY
 
Description N-1,N-1,N-4,N-4-Tetrakis(dibenzylphosphino)benzene-1,4-diamine, [C6H4{N(P(CH2C6H5)(2))(2)}(2)] (1) was prepared in moderate yield by reacting C6H4{N(PCl2)(2)}(2) with benzylmagnesium chloride (1M). The ligand 1 afforded cis-[{Mo(CO)(4)}(2){p-C6H4{N(P(CH2C6H5)(2))(2)}(2)}] (2), cis-[(PdCl2)(2){p-C6H4{N(P(CH2C6H5)(2))(2)}(2)}] (4), cis-[(PtCl2)(2){p-C6H4{N(P(CH2C6H5)(2))(2)}(2)}] (5) on treatment with Mo(CO)(4)(NC5H11)(2) and M(COD)Cl-2 (M = Pd or Pt), respectively. A trichloro-bridged complex, [{(eta(6)-cymene)Ru(mu-Cl)(3)RuCl}(2){p-C6H4{N(P(CH2Ph)(2))(2)}(2)}] (3) was obtained in the reaction of 1 with [(Ru(eta(6)-cymene)Cl-2](2). The reaction of 1 with four equivalents of AuCl(SMe2) afforded [{(AuCl)(4)}p-C6H4{N(P(CH2C6H5)(2))(2)}(2)] (8) in which the ligand shows the bridging mode of coordination. The 1: 2 reaction between 1 and [Cu(CH3CN)(4)]BF4 yielded a dinuclear complex, [{Cu(CH3CN)(2)}(2){p-C6H4{N(P(CH2C6H5)(2))(2)}(2)}](BF4)(2) (6), whereas the 1: reaction resulted in the formation of a coordination polymer, [Cu{p-C6H4{N(P(CH2C6H5)(2))(2)}(2)}](n)(BF4)(n) (7). All the compounds were characterized by spectroscopic and elemental analysis data and the structures of compounds 1, 2, 4 and 6 were further confirmed by single crystal X-ray diffraction studies. (c) 2013 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE SA
 
Date 2014-10-15T14:24:58Z
2014-10-15T14:24:58Z
2013
 
Type Article
 
Identifier INORGANICA CHIMICA ACTA, 407139-144
0020-1693
1873-3255
http://dx.doi.org/10.1016/j.ica.2013.07.026
http://dspace.library.iitb.ac.in/jspui/handle/100/15096
 
Language en